/* ============================================================
   NeuralFlow Blog — assets/blog.css
   Matches main website design tokens exactly.
   ============================================================ */

/* ── DESIGN TOKENS (Light) ── */
:root {
  --nf-font-sans: 'Plus Jakarta Sans', system-ui, sans-serif;
  --nf-font-mono: 'JetBrains Mono', monospace;

  --nf-bg:       #F8F9FC;
  --nf-bg-alt:   #FFFFFF;
  --nf-bg-surface: #FFFFFF;
  --nf-bg-muted: #EEF0F7;

  --nf-text:   #0D0F1C;
  --nf-text-2: #3A3F5C;
  --nf-text-3: #737A99;
  --nf-text-4: #A0A6BF;

  --nf-accent:        #1A56DB;
  --nf-accent-2:      #6741D9;
  --nf-accent-bg:     #EBF2FF;
  --nf-accent-border: rgba(26,86,219,0.2);
  --nf-success:       #0E7A3E;
  --nf-success-bg:    #ECFAF3;

  --nf-border:        rgba(13,15,28,0.08);
  --nf-border-md:     rgba(13,15,28,0.13);
  --nf-border-strong: rgba(13,15,28,0.2);

  --nf-shadow-xs:     0 1px 3px rgba(13,15,28,0.06);
  --nf-shadow-sm:     0 2px 10px rgba(13,15,28,0.07);
  --nf-shadow-md:     0 8px 28px rgba(13,15,28,0.09);
  --nf-shadow-lg:     0 20px 60px rgba(13,15,28,0.11);
  --nf-shadow-accent: 0 6px 24px rgba(26,86,219,0.22);

  --nf-radius-sm:   6px;
  --nf-radius-md:   10px;
  --nf-radius-lg:   16px;
  --nf-radius-xl:   24px;
  --nf-radius-pill: 100px;

  --nf-ease:       cubic-bezier(0.4,0,0.2,1);
  --nf-transition: 220ms var(--nf-ease);
  --nf-max-w:      1140px;
  --nav-h:         68px;
}

/* ── DARK MODE TOKENS ── */
[data-theme="dark"] {
  --nf-bg:       #0B0D18;
  --nf-bg-alt:   #0F1120;
  --nf-bg-surface: #141728;
  --nf-bg-muted: #191C30;

  --nf-text:   #E6E9F8;
  --nf-text-2: #9299BB;
  --nf-text-3: #575E7A;
  --nf-text-4: #363B52;

  --nf-accent:        #4D8EFF;
  --nf-accent-2:      #9B77FF;
  --nf-accent-bg:     rgba(77,142,255,0.09);
  --nf-accent-border: rgba(77,142,255,0.22);
  --nf-success:       #34D399;
  --nf-success-bg:    rgba(52,211,153,0.08);

  --nf-border:        rgba(255,255,255,0.06);
  --nf-border-md:     rgba(255,255,255,0.1);
  --nf-border-strong: rgba(255,255,255,0.16);

  --nf-shadow-xs:     0 1px 3px rgba(0,0,0,0.3);
  --nf-shadow-sm:     0 2px 10px rgba(0,0,0,0.35);
  --nf-shadow-md:     0 8px 28px rgba(0,0,0,0.4);
  --nf-shadow-lg:     0 20px 60px rgba(0,0,0,0.5);
  --nf-shadow-accent: 0 6px 24px rgba(77,142,255,0.18);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--nf-font-sans);
  background: var(--nf-bg);
  color: var(--nf-text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
  -webkit-font-smoothing: antialiased;
}
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--nf-bg); }
::-webkit-scrollbar-thumb { background: var(--nf-border-strong); border-radius: 3px; }
::selection { background: var(--nf-accent-bg); color: var(--nf-accent); }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* ── LAYOUT ── */
.nf-wrap { max-width: var(--nf-max-w); margin: 0 auto; padding: 0 32px; }
.nf-sec  { padding: 96px 0; }
.nf-sec-sm { padding: 56px 0; }

/* ── TYPOGRAPHY HELPERS ── */
.gradient-text {
  background: linear-gradient(135deg, var(--nf-accent), var(--nf-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--nf-font-mono);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--nf-accent); margin-bottom: 16px;
}
.eyebrow::before {
  content: ''; display: block;
  width: 22px; height: 1.5px;
  background: currentColor; border-radius: 2px; flex-shrink: 0;
}

/* ── NAV ── */
#nf-nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h); z-index: 1000;
  background: rgba(248,249,252,0.9);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--nf-border);
  transition: box-shadow 0.22s ease, background 0.3s ease;
  font-family: var(--nf-font-sans);
}
[data-theme="dark"] #nf-nav { background: rgba(11,13,24,0.92); }
#nf-nav.scrolled { box-shadow: var(--nf-shadow-sm); border-bottom-color: var(--nf-border-md); }

.nav-inner {
  max-width: var(--nf-max-w); margin: 0 auto; padding: 0 32px;
  height: 100%; display: flex; align-items: center;
  justify-content: space-between; gap: 24px;
}
.nav-logo {
  display: flex; align-items: center; gap: 9px;
  cursor: pointer; flex-shrink: 0; text-decoration: none;
}
.logo-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--nf-accent), var(--nf-accent-2));
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.logo-name { font-size: 18px; font-weight: 700; color: var(--nf-text); letter-spacing: -0.02em; }

.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav-links a {
  display: block; padding: 6px 12px; border-radius: 7px;
  font-size: 14px; font-weight: 400; color: var(--nf-text-2);
  cursor: pointer; transition: var(--nf-transition); text-decoration: none;
}
.nav-links a:hover { color: var(--nf-text); background: var(--nf-bg-muted); }
.nav-links a.current-menu-item,
.nav-links a.active { color: var(--nf-accent); }

.nav-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.theme-btn {
  width: 36px; height: 36px; border-radius: 8px;
  border: 1px solid var(--nf-border-md); background: transparent;
  color: var(--nf-text-3); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--nf-transition); font-size: 16px;
}
.theme-btn:hover { background: var(--nf-bg-muted); color: var(--nf-text); border-color: var(--nf-border-strong); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; font-family: var(--nf-font-sans); font-size: 14px; font-weight: 500;
  line-height: 1; border-radius: var(--nf-radius-md);
  padding: 12px 22px; border: 1.5px solid transparent;
  cursor: pointer; text-decoration: none; transition: var(--nf-transition); white-space: nowrap;
}
.btn-primary {
  background: var(--nf-accent); color: #fff; border-color: var(--nf-accent);
  box-shadow: var(--nf-shadow-accent);
}
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); box-shadow: 0 12px 36px rgba(26,86,219,0.28); }

/* Burger */
.burger {
  display: none; width: 36px; height: 36px;
  flex-direction: column; align-items: center; justify-content: center;
  gap: 5px; cursor: pointer;
  border: 1px solid var(--nf-border-md); border-radius: 8px;
  background: transparent; padding: 7px;
}
.burger span {
  display: block; width: 18px; height: 1.5px;
  background: var(--nf-text-2); border-radius: 2px; transition: var(--nf-transition);
}
.mob-nav {
  display: none; flex-direction: column; gap: 2px;
  position: fixed; top: var(--nav-h); left: 0; right: 0;
  background: var(--nf-bg-alt); border-bottom: 1px solid var(--nf-border);
  padding: 16px 20px 20px; z-index: 999; box-shadow: var(--nf-shadow-md);
}
.mob-nav.open { display: flex; }
.mob-nav a {
  display: block; padding: 12px 14px; border-radius: 8px;
  font-size: 15px; color: var(--nf-text-2); text-decoration: none; transition: var(--nf-transition);
}
.mob-nav a:hover { background: var(--nf-bg-muted); color: var(--nf-text); }

/* ── BLOG HEADER ── */
.blog-header {
  padding-top: calc(var(--nav-h) + 64px);
  padding-bottom: 56px;
  border-bottom: 1px solid var(--nf-border);
  background: var(--nf-bg-alt);
}
.blog-header h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800; letter-spacing: -0.025em;
  color: var(--nf-text); line-height: 1.1; margin-bottom: 14px;
}
.blog-header p {
  font-size: 17px; color: var(--nf-text-2);
  max-width: 520px; line-height: 1.7; font-weight: 300;
}

/* ── CATEGORY FILTER NAV ── */
.blog-cat-nav {
  display: flex; gap: 6px; flex-wrap: wrap; margin-top: 32px;
}
.blog-cat-btn {
  display: inline-block; padding: 7px 16px;
  border-radius: var(--nf-radius-pill); font-size: 13px; font-weight: 500;
  color: var(--nf-text-3); background: var(--nf-bg-surface);
  border: 1px solid var(--nf-border-md); cursor: pointer; transition: var(--nf-transition);
  text-decoration: none;
}
.blog-cat-btn:hover { color: var(--nf-text); border-color: var(--nf-border-strong); transform: translateY(-1px); }
.blog-cat-btn.active,
.blog-cat-btn.current-cat { background: var(--nf-accent); color: #fff; border-color: var(--nf-accent); }

/* ── BLOG CARD ── */
.blog-card {
  background: var(--nf-bg-surface);
  border: 1px solid var(--nf-border);
  border-radius: var(--nf-radius-xl);
  overflow: hidden; transition: var(--nf-transition);
  display: flex; flex-direction: column;
}
.blog-card:hover {
  border-color: var(--nf-border-md);
  box-shadow: var(--nf-shadow-md);
  transform: translateY(-3px);
}
.blog-thumb {
  height: 200px; overflow: hidden; position: relative;
  background: var(--nf-bg-muted);
  display: flex; align-items: center; justify-content: center;
}
.blog-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s ease;
}
.blog-card:hover .blog-thumb img { transform: scale(1.04); }

/* Thumb gradient fallback (no image) */
.blog-thumb.bt-blue   { background: linear-gradient(135deg, var(--nf-accent-bg), rgba(103,65,217,0.08)); }
.blog-thumb.bt-purple { background: linear-gradient(135deg, rgba(103,65,217,0.08), rgba(220,38,38,0.05)); }
.blog-thumb.bt-green  { background: linear-gradient(135deg, var(--nf-success-bg), var(--nf-accent-bg)); }
.blog-thumb.bt-amber  { background: linear-gradient(135deg, rgba(214,119,10,0.07), rgba(103,65,217,0.08)); }
.thumb-icon { font-size: 42px; }
.thumb-category-pill {
  position: absolute; top: 14px; left: 14px;
  background: rgba(0,0,0,0.45); backdrop-filter: blur(8px);
  color: #fff; font-size: 11px; font-weight: 600;
  letter-spacing: 0.05em; text-transform: uppercase;
  padding: 4px 11px; border-radius: var(--nf-radius-pill);
}

.blog-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.blog-meta { display: flex; align-items: center; gap: 7px; margin-bottom: 10px; flex-wrap: wrap; }
.blog-cat-label {
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--nf-accent); text-decoration: none;
}
.blog-cat-label:hover { color: var(--nf-accent-2); }
.blog-sep { color: var(--nf-border-md); font-size: 12px; }
.blog-date, .blog-rt { font-size: 12px; color: var(--nf-text-4); }
.blog-title {
  font-size: 17px; font-weight: 600; color: var(--nf-text);
  line-height: 1.35; margin: 0 0 10px; letter-spacing: -0.01em;
  transition: color 0.18s; text-decoration: none; display: block;
}
.blog-title:hover { color: var(--nf-accent); }
.blog-excerpt { font-size: 13px; color: var(--nf-text-3); line-height: 1.7; margin: 0 0 16px; flex: 1; }
.blog-more {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 13px; font-weight: 500; color: var(--nf-accent);
  transition: gap 0.18s; margin-top: auto; text-decoration: none;
}
.blog-more:hover { gap: 9px; }

/* Author row in card */
.blog-author-row {
  display: flex; align-items: center; gap: 9px;
  margin-top: 16px; padding-top: 16px;
  border-top: 1px solid var(--nf-border);
}
.blog-author-av {
  width: 30px; height: 30px; border-radius: 50%; overflow: hidden;
  background: linear-gradient(135deg, var(--nf-accent), var(--nf-accent-2));
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; color: #fff; flex-shrink: 0;
}
.blog-author-av img { width: 100%; height: 100%; object-fit: cover; }
.blog-author-name { font-size: 12px; font-weight: 600; color: var(--nf-text-2); }

/* ── FEATURED POST ── */
.blog-featured {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  border-radius: var(--nf-radius-xl);
  overflow: hidden;
  border: 1px solid var(--nf-border);
  background: var(--nf-bg-surface);
  margin-bottom: 28px;
  transition: var(--nf-transition);
}
.blog-featured:hover {
  border-color: var(--nf-border-md);
  box-shadow: var(--nf-shadow-lg);
  transform: translateY(-3px);
}
.blog-featured .blog-thumb {
  height: 100%; min-height: 260px;
  border-radius: 0; border-right: 1px solid var(--nf-border);
}
.blog-featured .blog-body { padding: 32px 28px; }
.blog-featured .blog-title { font-size: 22px; }

/* ── BLOG INDEX GRID ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 28px;
}

/* ── SINGLE POST ── */
.post-hero {
  padding-top: calc(var(--nav-h) + 56px);
  padding-bottom: 0;
  background: var(--nf-bg-alt);
  border-bottom: 1px solid var(--nf-border);
}
.post-hero-inner { max-width: 780px; margin: 0 auto; padding: 0 32px 48px; }
.post-breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--nf-text-3);
  margin-bottom: 22px; flex-wrap: wrap;
}
.post-breadcrumb a { color: var(--nf-accent); text-decoration: none; }
.post-breadcrumb a:hover { text-decoration: underline; }
.post-breadcrumb span { color: var(--nf-border-strong); }

.post-title {
  font-size: clamp(28px, 4.5vw, 48px);
  font-weight: 800; letter-spacing: -0.025em;
  line-height: 1.1; color: var(--nf-text); margin-bottom: 20px;
}
.post-meta-row {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  margin-bottom: 0; padding-bottom: 24px;
}
.post-author-chip {
  display: flex; align-items: center; gap: 8px;
}
.post-author-av {
  width: 36px; height: 36px; border-radius: 50%; overflow: hidden;
  background: linear-gradient(135deg, var(--nf-accent), var(--nf-accent-2));
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #fff; flex-shrink: 0;
}
.post-author-av img { width: 100%; height: 100%; object-fit: cover; }
.post-author-name { font-size: 14px; font-weight: 600; color: var(--nf-text); }
.post-author-role { font-size: 12px; color: var(--nf-text-3); }
.post-meta-sep { width: 4px; height: 4px; border-radius: 50%; background: var(--nf-border-strong); }
.post-meta-info { font-size: 13px; color: var(--nf-text-3); }

/* Hero image */
.post-hero-image {
  margin-top: 0; width: 100%;
  max-height: 500px; overflow: hidden;
  border-radius: var(--nf-radius-xl) var(--nf-radius-xl) 0 0;
}
.post-hero-image img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}

/* ── POST CONTENT ── */
.post-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 56px;
  align-items: start;
  padding: 56px 0 96px;
}
.post-content {
  font-size: 17px; line-height: 1.8; color: var(--nf-text-2);
  font-weight: 300;
}
.post-content h2 {
  font-size: 26px; font-weight: 700; letter-spacing: -0.015em;
  color: var(--nf-text); margin: 44px 0 16px; line-height: 1.25;
}
.post-content h3 {
  font-size: 20px; font-weight: 600;
  color: var(--nf-text); margin: 32px 0 12px;
}
.post-content h4 {
  font-size: 17px; font-weight: 600;
  color: var(--nf-text); margin: 24px 0 8px;
}
.post-content p { margin-bottom: 20px; }
.post-content a { color: var(--nf-accent); text-decoration: underline; text-decoration-color: var(--nf-accent-border); }
.post-content a:hover { text-decoration-color: var(--nf-accent); }
.post-content strong { color: var(--nf-text); font-weight: 600; }
.post-content em { font-style: italic; }
.post-content ul, .post-content ol { padding-left: 1.5em; margin-bottom: 20px; }
.post-content li { margin-bottom: 8px; }
.post-content blockquote {
  border-left: 3px solid var(--nf-accent);
  padding: 18px 24px; margin: 28px 0;
  background: var(--nf-accent-bg);
  border-radius: 0 var(--nf-radius-md) var(--nf-radius-md) 0;
  font-style: italic; font-size: 18px; color: var(--nf-text);
}
.post-content pre {
  background: var(--nf-bg-muted);
  border: 1px solid var(--nf-border-md);
  border-radius: var(--nf-radius-md);
  padding: 20px; overflow-x: auto; margin: 24px 0;
  font-family: var(--nf-font-mono); font-size: 14px;
}
.post-content code {
  font-family: var(--nf-font-mono); font-size: 0.88em;
  background: var(--nf-bg-muted); padding: 2px 7px;
  border-radius: 4px; border: 1px solid var(--nf-border);
  color: var(--nf-accent);
}
.post-content pre code { background: none; border: none; padding: 0; color: var(--nf-text-2); }
.post-content img {
  width: 100%; border-radius: var(--nf-radius-lg);
  border: 1px solid var(--nf-border); margin: 28px 0;
}
.post-content hr {
  border: none; border-top: 1px solid var(--nf-border-md); margin: 40px 0;
}
.post-content table {
  width: 100%; border-collapse: collapse; margin: 24px 0;
  font-size: 15px;
}
.post-content th {
  background: var(--nf-bg-muted); padding: 12px 16px;
  border: 1px solid var(--nf-border-md); font-weight: 600;
  color: var(--nf-text); text-align: left; font-size: 13px;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.post-content td {
  padding: 12px 16px; border: 1px solid var(--nf-border);
  color: var(--nf-text-2);
}
.post-content tr:hover td { background: var(--nf-bg-muted); }

/* Post tags */
.post-tags { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 8px; padding-top: 32px; border-top: 1px solid var(--nf-border); }
.post-tag {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 14px; border-radius: var(--nf-radius-pill);
  font-size: 12px; font-weight: 500; border: 1px solid var(--nf-border-md);
  color: var(--nf-text-2); background: var(--nf-bg-muted); text-decoration: none;
  transition: var(--nf-transition);
}
.post-tag:hover { border-color: var(--nf-accent); color: var(--nf-accent); }

/* Share row */
.post-share { margin-top: 28px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.share-label { font-size: 13px; color: var(--nf-text-3); font-weight: 500; }
.share-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: var(--nf-radius-md);
  font-size: 13px; font-weight: 500; border: 1px solid var(--nf-border-md);
  color: var(--nf-text-2); background: var(--nf-bg-surface);
  transition: var(--nf-transition); text-decoration: none; cursor: pointer;
}
.share-btn:hover { border-color: var(--nf-accent); color: var(--nf-accent); background: var(--nf-accent-bg); }

/* ── SIDEBAR ── */
.post-sidebar { position: sticky; top: calc(var(--nav-h) + 28px); }
.sidebar-card {
  background: var(--nf-bg-surface);
  border: 1px solid var(--nf-border);
  border-radius: var(--nf-radius-xl);
  padding: 22px;
  margin-bottom: 20px;
}
.sidebar-card-title {
  font-family: var(--nf-font-mono);
  font-size: 10px; font-weight: 500;
  letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--nf-text-4); margin-bottom: 14px;
}

/* TOC */
.toc-list { list-style: none; }
.toc-list li { margin-bottom: 2px; }
.toc-list a {
  display: block; padding: 7px 10px;
  border-radius: var(--nf-radius-sm);
  font-size: 13px; color: var(--nf-text-3);
  text-decoration: none; transition: var(--nf-transition);
  border-left: 2px solid transparent;
}
.toc-list a:hover, .toc-list a.toc-active {
  color: var(--nf-accent); background: var(--nf-accent-bg);
  border-left-color: var(--nf-accent);
}

/* CTA Sidebar card */
.sidebar-cta-card {
  background: linear-gradient(135deg, var(--nf-accent-bg), rgba(103,65,217,0.06));
  border: 1px solid var(--nf-accent-border);
  border-radius: var(--nf-radius-xl);
  padding: 24px; margin-bottom: 20px; text-align: center;
}
.sidebar-cta-icon { font-size: 28px; margin-bottom: 12px; }
.sidebar-cta-title { font-size: 16px; font-weight: 700; color: var(--nf-text); margin-bottom: 8px; }
.sidebar-cta-sub { font-size: 13px; color: var(--nf-text-2); line-height: 1.6; margin-bottom: 16px; }

/* Related posts in sidebar */
.sidebar-post {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 10px 0; border-bottom: 1px solid var(--nf-border);
}
.sidebar-post:last-child { border-bottom: none; padding-bottom: 0; }
.sidebar-post-thumb {
  width: 54px; height: 54px; border-radius: var(--nf-radius-md);
  flex-shrink: 0; overflow: hidden; background: var(--nf-bg-muted);
  display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.sidebar-post-thumb img { width: 100%; height: 100%; object-fit: cover; }
.sidebar-post-title {
  font-size: 13px; font-weight: 600; color: var(--nf-text);
  line-height: 1.35; text-decoration: none;
  display: block; transition: color 0.18s;
}
.sidebar-post-title:hover { color: var(--nf-accent); }
.sidebar-post-meta { font-size: 11px; color: var(--nf-text-4); margin-top: 4px; }

/* Progress bar */
.read-progress {
  position: fixed; top: var(--nav-h); left: 0; right: 0;
  height: 2px; background: transparent; z-index: 1001;
}
.read-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--nf-accent), var(--nf-accent-2));
  width: 0; transition: width 0.1s linear;
}

/* ── AUTHOR BOX ── */
.author-box {
  background: var(--nf-bg-surface);
  border: 1px solid var(--nf-border-md);
  border-radius: var(--nf-radius-xl);
  padding: 28px; margin-top: 48px;
  display: flex; gap: 20px; align-items: flex-start;
}
.author-box-av {
  width: 72px; height: 72px; border-radius: 50%; overflow: hidden; flex-shrink: 0;
  background: linear-gradient(135deg, var(--nf-accent), var(--nf-accent-2));
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; font-weight: 800; color: #fff;
}
.author-box-av img { width: 100%; height: 100%; object-fit: cover; }
.author-box-name { font-size: 17px; font-weight: 700; color: var(--nf-text); margin-bottom: 4px; }
.author-box-role { font-size: 13px; color: var(--nf-accent); margin-bottom: 10px; font-family: var(--nf-font-mono); text-transform: uppercase; letter-spacing: 0.06em; font-size: 11px; }
.author-box-bio { font-size: 14px; color: var(--nf-text-2); line-height: 1.7; }

/* ── RELATED POSTS ── */
.related-posts { padding: 64px 0; border-top: 1px solid var(--nf-border); }
.related-posts h3 {
  font-size: 22px; font-weight: 700; color: var(--nf-text);
  letter-spacing: -0.015em; margin-bottom: 24px;
}
.related-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}

/* ── NEWSLETTER BAND ── */
.newsletter-band {
  background: var(--nf-bg-alt);
  border-top: 1px solid var(--nf-border);
  border-bottom: 1px solid var(--nf-border);
  padding: 64px 0; text-align: center;
}
.newsletter-band h2 { font-size: 28px; font-weight: 700; color: var(--nf-text); margin-bottom: 10px; }
.newsletter-band p { font-size: 16px; color: var(--nf-text-2); max-width: 440px; margin: 0 auto 28px; }
.newsletter-form { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; max-width: 480px; margin: 0 auto; }
.newsletter-input {
  flex: 1; min-width: 220px;
  padding: 12px 18px;
  background: var(--nf-bg-muted); border: 1px solid var(--nf-border-md);
  border-radius: var(--nf-radius-md);
  font-family: var(--nf-font-sans); font-size: 14px; color: var(--nf-text);
  outline: none; transition: var(--nf-transition);
}
.newsletter-input:focus { border-color: var(--nf-accent); background: var(--nf-bg-surface); box-shadow: 0 0 0 3px var(--nf-accent-bg); }
.newsletter-input::placeholder { color: var(--nf-text-4); }
.newsletter-note { font-size: 12px; color: var(--nf-text-4); margin-top: 12px; }

/* ── CTA BLOCK ── */
.cta-block {
  background: var(--nf-bg-surface);
  border: 1px solid var(--nf-border-md);
  border-radius: var(--nf-radius-xl);
  padding: 64px 56px; text-align: center; position: relative; overflow: hidden;
}
.cta-block::before {
  content: ''; position: absolute; top: -60px; left: 50%; transform: translateX(-50%);
  width: 500px; height: 300px;
  background: radial-gradient(ellipse, var(--nf-accent-bg), transparent 70%);
  pointer-events: none; border-radius: 50%;
}
.cta-block > * { position: relative; z-index: 1; }
.cta-h2 { font-size: clamp(24px, 4vw, 38px); font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; color: var(--nf-text); margin-bottom: 12px; }
.cta-sub { font-size: 16px; color: var(--nf-text-2); max-width: 420px; margin: 0 auto 28px; font-weight: 300; line-height: 1.7; }
.cta-trust { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-top: 16px; }
.cta-t-item { font-size: 13px; color: var(--nf-text-3); display: flex; align-items: center; gap: 6px; }
.cta-t-item::before { content: '✓'; color: var(--nf-success); font-weight: 700; font-size: 12px; }

/* ── PAGINATION ── */
.blog-pagination {
  display: flex; justify-content: center; align-items: center;
  gap: 6px; margin-top: 56px; flex-wrap: wrap;
}
.page-numbers {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: var(--nf-radius-md);
  font-size: 14px; font-weight: 500; text-decoration: none;
  border: 1px solid var(--nf-border-md); color: var(--nf-text-2);
  background: var(--nf-bg-surface); transition: var(--nf-transition);
}
.page-numbers:hover { border-color: var(--nf-accent); color: var(--nf-accent); }
.page-numbers.current { background: var(--nf-accent); color: #fff; border-color: var(--nf-accent); }
.page-numbers.prev, .page-numbers.next { width: auto; padding: 0 14px; }

/* ── COMMENTS ── */
.comments-section { margin-top: 56px; padding-top: 48px; border-top: 1px solid var(--nf-border); }
.comments-section h3 { font-size: 20px; font-weight: 700; color: var(--nf-text); margin-bottom: 28px; }
.comment-item { display: flex; gap: 14px; margin-bottom: 28px; }
.comment-av {
  width: 42px; height: 42px; border-radius: 50%; flex-shrink: 0; overflow: hidden;
  background: var(--nf-bg-muted); display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; color: var(--nf-text-3);
}
.comment-av img { width: 100%; height: 100%; object-fit: cover; }
.comment-body { flex: 1; }
.comment-header { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; flex-wrap: wrap; }
.comment-author { font-size: 14px; font-weight: 600; color: var(--nf-text); }
.comment-date { font-size: 12px; color: var(--nf-text-4); }
.comment-text { font-size: 14px; color: var(--nf-text-2); line-height: 1.7; }
.comment-form-wrap { margin-top: 36px; }
.comment-form-title { font-size: 18px; font-weight: 700; color: var(--nf-text); margin-bottom: 20px; }
.comment-input {
  width: 100%; padding: 12px 15px;
  background: var(--nf-bg-muted); border: 1px solid var(--nf-border-md);
  border-radius: var(--nf-radius-md);
  font-family: var(--nf-font-sans); font-size: 14px; color: var(--nf-text);
  outline: none; transition: var(--nf-transition); margin-bottom: 12px;
}
.comment-input:focus { border-color: var(--nf-accent); background: var(--nf-bg-surface); box-shadow: 0 0 0 3px var(--nf-accent-bg); }
.comment-input::placeholder { color: var(--nf-text-4); }
textarea.comment-input { min-height: 100px; resize: vertical; line-height: 1.6; }

/* ── FOOTER ── */
.nf-footer { border-top: 1px solid var(--nf-border); }
.ft-main { padding: 64px 0 48px; }
.ft-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 40px;
}
.ft-logo {
  display: flex; align-items: center; gap: 9px; margin-bottom: 14px;
  cursor: pointer; text-decoration: none;
}
.ft-about { font-size: 14px; color: var(--nf-text-3); line-height: 1.7; margin-bottom: 20px; max-width: 260px; }
.ft-social { display: flex; gap: 8px; }
.ft-sb {
  width: 34px; height: 34px; border-radius: 8px;
  border: 1px solid var(--nf-border-md); background: transparent;
  color: var(--nf-text-3); text-decoration: none;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; transition: var(--nf-transition);
}
.ft-sb:hover { color: var(--nf-text); border-color: var(--nf-border-strong); background: var(--nf-bg-muted); }
.ft-col-title { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--nf-text-3); margin-bottom: 14px; }
.ft-links { list-style: none; }
.ft-links li { margin-bottom: 9px; }
.ft-links a { font-size: 14px; color: var(--nf-text-3); text-decoration: none; transition: color 0.18s; cursor: pointer; }
.ft-links a:hover { color: var(--nf-text); }
.ft-bottom { border-top: 1px solid var(--nf-border); padding: 20px 0; }
.ft-bottom-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.ft-copy { font-size: 13px; color: var(--nf-text-4); }
.ft-legal { display: flex; gap: 20px; }
.ft-legal a { font-size: 13px; color: var(--nf-text-4); text-decoration: none; transition: color 0.18s; }
.ft-legal a:hover { color: var(--nf-text); }

/* ── REVEAL ANIMATION ── */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.55s var(--nf-ease), transform 0.55s var(--nf-ease); }
.reveal.vis { opacity: 1; transform: translateY(0); }
.d1 { transition-delay: 0.08s; }
.d2 { transition-delay: 0.16s; }

/* ── BACK TO TOP ── */
#btt {
  position: fixed; bottom: 28px; right: 28px;
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--nf-accent); color: #fff; border: none; cursor: pointer;
  font-size: 16px; display: none; align-items: center; justify-content: center;
  box-shadow: var(--nf-shadow-accent); transition: var(--nf-transition); z-index: 900;
}
#btt.show { display: flex; }
#btt:hover { filter: brightness(1.1); transform: translateY(-2px); }

/* ── NF WIDGET (WP sidebar) ── */
.nf-widget { margin-bottom: 24px; }
.nf-widget-title { font-family: var(--nf-font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.09em; text-transform: uppercase; color: var(--nf-text-4); margin-bottom: 14px; }

/* ── SEARCH FORM ── */
.nf-search-form { display: flex; gap: 8px; }
.nf-search-form input {
  flex: 1; padding: 10px 14px;
  background: var(--nf-bg-muted); border: 1px solid var(--nf-border-md);
  border-radius: var(--nf-radius-md);
  font-family: var(--nf-font-sans); font-size: 14px; color: var(--nf-text); outline: none;
}
.nf-search-form input:focus { border-color: var(--nf-accent); }
.nf-search-form button {
  padding: 10px 16px; background: var(--nf-accent); color: #fff; border: none;
  border-radius: var(--nf-radius-md); cursor: pointer; font-size: 14px;
}

/* ── RESPONSIVE ── */
@media (max-width: 1020px) {
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured .blog-thumb { min-height: 220px; border-right: none; border-bottom: 1px solid var(--nf-border); }
  .post-layout { grid-template-columns: 1fr; gap: 40px; }
  .post-sidebar { position: static; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .ft-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 768px) {
  .nav-links { display: none !important; }
  .burger { display: flex; }
  .blog-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .nf-wrap { padding: 0 20px; }
  .nav-inner { padding: 0 20px; }
  .cta-block { padding: 48px 24px; }
  .author-box { flex-direction: column; }
  .ft-grid { grid-template-columns: 1fr; }
  .ft-bottom-inner { flex-direction: column; align-items: flex-start; }
}